politics jumped the shark. when comedycentralstephencolbertcame to testify before congress about the plight of migrant farm workers, he did so in character as a right wing, blow hard cable anchor. it's not clear whose reputation took a bigger hit today, congress' or colbert's. >> as we've heard this morning, america's farms are far too dependent on immigrant labor to pick our fruits and vegetables. the obvious answer is to stop eating fruits and vegetables and if you look at the recent obesity statistics you'll see that many americans have already started. >> it didn't stop at capitol hill. her ay reid and sharron angle supporters broke out into a full on brawl at a local christian school. politics gone mad at the top of the show. not in the "sideshow." plus, the republican pledge to america. what does it really mean? some on the right say it's pablam to change votes and change nothing. some on the left say it's nothing more than a smokescreen to disguise radical ideas. and the comeback kid with another comeback. bill clinton may be the go-to guy president obama needs to save him

a lot of jon stewartandstephencolbertyou know to save harry reid's political life. >> oh yeah i don't think so either. >> that's not what they doe. >> here's a question. >> to vote for brahmarack obama. >> excuse me, they're putting their butts on the line, too. you know what's going to happen. that picture on the mall and you're going to do the visual because you can argue about crowd estimates and all that you want. if that mall ain't covered at least along the reflecting pool the right wing will be going crazy with visuals, trashing these guys, lawrence. for a bad day. >> and if they do, that will play perfectly into comedy central's design. if the right wing or fox news wants to take this event seriously and if glenn beck wants to take it seriously as a you know a challenge to his domination, then great. that is exactly what jon stewart and stephen colbert are hoping for. that that side of the world will take this stuff very seriously. you know, they know where the joke is. if that side of the world doesn't get it that's fine with them. >> jon shown some samples of the signs. he